Most people in the developed world have fifty to sixty years of adult life free from considerable mental or physical impairment. (Ages 18 to 70ish).

Clearly, that is plenty of time to get lots done. However, if one chooses to include activities in one's life that are consuming over decades, such as family or self-employed businesses, then available time for other pursuits diminishes dramatically.

It is important to simutaneously consider two views of time passing: Firstly, the daily and weekly time, and, secondly, time in multi-year segments. Do not allow the first, however full and repetitive it may seem, to interfere with the possibilities of the second consideration.